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15 TROUBLESHOOTING
Related buffer memory
address
Axis 1 Axis 2 Axis 3 Axis 4
Refer to Section 5.4
"Block start data"
Refer to Section 5.3
"List of positioning data"
1504 1604 1704 1804
—
—
—
—
—
—
—
—
1500 1600 1700 1800
Refer to Section 5.3
"List of positioning data"
Set range
(Setting with sequence program)
—
<Special start instruction>
00
to 06
H
H
—
<M code OFF request>
1: M code ON signal is turned OFF
—
—
<Positioning start No.>
1 to 600,
7000 to 7004,
9001 to 9004
<Maximum radius>
536870912
<LOOP to LEND>
1 to 65535
15 - 21
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Remedy
Normalize the block start data.
Correct the instruction code of the special start data.
(Refer to Section 5.4
)
Da.13
Correct the control system.
(Refer to Section 5.3
)
Da.2
After turning OFF the M code ON signal, start the
system. (Refer to Section 12.7.3)
Check the sequence program which turns ON/OFF the
PLC READY signal (Y0), and turn ON the PLC READY
signal. Then start the system.
Check the QD75 READY ON signal, and then start the
system. (Refer to Section 3.3.2)
Normalize the positioning start No.
(Refer to Section 12.7.8)
Correct the positioning data.
(Refer to Section 9.2.10, 9.2.11)
Set 1 to 65535 in LOOP. (Refer to Section 9.2.22)
MELSEC-Q
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